According to Robert Ellis, Ph.D., author of How to Make Yourself Happy and Remarkably Less Disturbable, “There is really nothing wrong with dissatisfaction. It spurs us on to improve our lives. The problem occurs when we become defeated by our dissatisfaction. Sadly, that happens all too often, usually due to irrational and demanding beliefs.”
The point is, keep striving to improve your physique in the gym. Just because you don’t resemble the pros with their genetic superiority (and pharmaceutical helpers) doesn’t mean you’re a failure. That’s an irrational belief. You can be dissatisfied, but channel that emotion into your workouts, not into your attitude outside the gym.